84
E) a number of causes can lead to skin cancer
Many early adventurers and settlers in the New World withstood the rigors of a long, dangerous
Atlantic crossing in the hope of finding treasure in America. But there were no mountains of gold –
only a vast, silent land covered with unbroken forests, and penetrated from the Atlantic seaboard by a
series of short rivers. North America offered millions of acres of virgin soil and luxuriant forests,
huge mineral deposits, fur of many animals, and fish and game in abundance. Its position within the
temperate zone, while guaranteeing a variety of climate, freed it from the extremes of arctic cold and
tropical heat. Rainfall varied but was sufficient for raising a large variety of crops.
Do'stlaringiz bilan baham: |